Factors influencing the rate of gold cyanide leaching and adsorption on activated carbon, and their impact on the design of CIL and CIP circuits

2011 ◽  
Vol 24 (6) ◽  
pp. 484-494 ◽  
Author(s):  
C.A. Fleming ◽  
A. Mezei ◽  
E. Bourricaudy ◽  
M. Canizares ◽  
M. Ashbury
Keyword(s):  
Activated Carbon ◽  
Gold Cyanide ◽  
Cyanide Leaching ◽  
Factors Influencing

Factors Influencing the Efficiency of Activated Carbon

1951 ◽  
Vol 43 (4) ◽  
pp. 322-326 ◽  
Author(s):  
D. Colebaugh ◽  
J. Filicky ◽  
A. Hyndshaw
Keyword(s):  
Activated Carbon ◽  
Factors Influencing

scholarly journals Adsorption of Mercury from a Cyanide Leaching Solution Using Various Activation Rates of Granular Activated Carbon: A Laboratory- and Industrial-Scale Study

2020 ◽  
Vol 12 (8) ◽  
pp. 3287 ◽  
Author(s):  
Sina Bastami ◽  
Sina Ghassa ◽  
Amin Seyedhakimi ◽  
Saeed Chehreh Chelgani
Keyword(s):  
Activated Carbon ◽  
Laboratory Test ◽  
Critical Role ◽  
Precious Metals ◽  
Granular Activated Carbon ◽  
Industrial Scale ◽  
Test Results ◽  
Cyanide Leaching ◽  
Laboratory Test Results ◽  
Leaching Solution

The use of granular activated carbon (GAC) is a typical and sustainable technique for recovering precious metals from a cyanide leaching solution (CLS). The level of GAC activity is a fundamental factor in assessing the rate of precious metal adsorption; thus, it is essential to determine the efficiency of carbon elution for reproducing GACs. Since mercury (Hg) adsorption plays a critical role, economically and environmentally, in GAC efficiency, we conducted various laboratory and industrial experiments to explore the effect of different rates of GAC activation (10%, 35%, 70% and 100%) on Hg adsorption from CLS. Assessments of laboratory test results showed a direct relationship between the Hg adsorption and GAC activity; by increasing the GAC activity from 10% to 100%, the recovery of Hg was increased from 20% to 41%. Kinetic modeling results indicated that the Hg adsorption for all GAC activities followed chemisorption mechanisms. There was good agreement between the laboratory test results and the results of experiments on the industrial scale (that used a continuous circuit). These outcomes indicate that by increasing the frequency of carbon reactivation and using GAC with a high level of activity in the first tank, Hg desorption was meaningfully decreased and recovery was improved (for 10% GAC activity vs. 35% GAC activity, recovery was 40% vs. 90%, respectively).

The mechanism of elution of gold cyanide from activated carbon

1994 ◽  
Vol 25 (6) ◽  
pp. 829-838 ◽  
Author(s):  
J. S. J. Van Deventer ◽  
P. F. Van Der Merwe
Keyword(s):  
Activated Carbon ◽  
Gold Cyanide

The binary adsorption of gold cyanide and ethyl xanthate onto activated carbon

1991 ◽  
Vol 26 (3) ◽  
pp. 395-401 ◽  
Author(s):  
B.D. Young ◽  
J.D. Le Roux ◽  
A.W. Bryson
Keyword(s):  
Activated Carbon ◽  
Binary Adsorption ◽  
Gold Cyanide ◽  
Ethyl Xanthate

scholarly journals Factors Influencing NO2 Adsorption/Reduction on Microporous Activated Carbon: Porosity vs. Surface Chemistry

Materials ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 622 ◽  
Author(s):  
Imen Ghouma ◽  
Mejdi Jeguirim ◽  
Lionel Limousy ◽  
Najoua Bader ◽  
Abdelmottaleb Ouederni ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Surface Chemistry ◽  
Factors Influencing ◽  
Adsorption Reduction ◽  
No2 Adsorption

scholarly journals Intensification Behavior of Mercury Ions on Gold Cyanide Leaching

Metals ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 80 ◽  
Author(s):  
Qiang Zhong ◽  
Yongbin Yang ◽  
Lijuan Chen ◽  
Qian Li ◽  
Bin Xu ◽  
...  
Keyword(s):  
Mercury Ions ◽  
Gold Cyanide ◽  
Cyanide Leaching
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